主要是有机物的相互转化,如下：C2H5OH-浓硫酸,170℃->CH2=CH2↑+H2OCH2=CH2+HBr-->CH3CH2BrCH3CH2Br+NaOH-水,△->CH3CH2OH+NaBr2C2H5OH+O2-Cu,△->2CH3CHO+2H2OCH3COOH+C2H5OH-浓硫酸,△->CH3COOC2H5+H2O...